/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 03:55:36,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 03:55:36,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 03:55:36,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 03:55:36,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 03:55:36,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 03:55:36,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 03:55:36,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 03:55:36,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 03:55:36,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 03:55:36,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 03:55:36,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 03:55:36,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 03:55:36,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 03:55:36,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 03:55:36,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 03:55:36,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 03:55:36,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 03:55:36,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 03:55:36,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 03:55:36,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 03:55:36,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 03:55:36,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 03:55:36,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 03:55:36,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 03:55:36,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 03:55:36,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 03:55:36,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 03:55:36,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 03:55:36,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 03:55:36,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 03:55:36,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 03:55:36,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 03:55:36,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 03:55:36,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 03:55:36,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 03:55:36,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 03:55:36,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 03:55:36,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 03:55:36,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 03:55:36,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 03:55:36,504 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 03:55:36,516 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 03:55:36,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 03:55:36,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 03:55:36,519 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 03:55:36,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 03:55:36,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 03:55:36,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 03:55:36,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 03:55:36,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 03:55:36,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 03:55:36,521 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 03:55:36,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 03:55:36,521 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 03:55:36,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 03:55:36,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 03:55:36,522 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 03:55:36,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 03:55:36,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 03:55:36,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 03:55:36,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 03:55:36,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 03:55:36,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 03:55:36,524 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 03:55:36,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 03:55:36,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 03:55:36,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 03:55:36,993 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 03:55:36,998 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 03:55:36,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-11-07 03:55:37,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be77ef546/74b95bdaec7541fdbfd1376ee5279d73/FLAG2a5b0c124 [2020-11-07 03:55:37,740 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 03:55:37,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-11-07 03:55:37,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be77ef546/74b95bdaec7541fdbfd1376ee5279d73/FLAG2a5b0c124 [2020-11-07 03:55:38,001 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be77ef546/74b95bdaec7541fdbfd1376ee5279d73 [2020-11-07 03:55:38,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 03:55:38,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 03:55:38,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 03:55:38,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 03:55:38,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 03:55:38,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:55:38" (1/1) ... [2020-11-07 03:55:38,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d91be23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:38, skipping insertion in model container [2020-11-07 03:55:38,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:55:38" (1/1) ... [2020-11-07 03:55:38,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 03:55:38,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 03:55:38,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 03:55:38,424 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 03:55:38,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 03:55:38,674 INFO L208 MainTranslator]: Completed translation [2020-11-07 03:55:38,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:38 WrapperNode [2020-11-07 03:55:38,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 03:55:38,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 03:55:38,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 03:55:38,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 03:55:38,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:38" (1/1) ... [2020-11-07 03:55:38,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:38" (1/1) ... [2020-11-07 03:55:38,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:38" (1/1) ... [2020-11-07 03:55:38,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:38" (1/1) ... [2020-11-07 03:55:38,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:38" (1/1) ... [2020-11-07 03:55:38,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:38" (1/1) ... [2020-11-07 03:55:38,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:38" (1/1) ... [2020-11-07 03:55:38,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 03:55:38,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 03:55:38,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 03:55:38,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 03:55:38,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 03:55:38,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 03:55:38,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 03:55:38,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 03:55:38,936 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 03:55:38,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 03:55:38,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 03:55:38,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 03:55:38,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 03:55:38,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 03:55:38,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 03:55:38,938 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 03:55:38,938 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 03:55:38,938 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 03:55:38,938 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 03:55:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 03:55:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 03:55:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 03:55:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 03:55:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 03:55:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 03:55:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 03:55:38,941 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-11-07 03:55:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 03:55:38,944 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 03:55:38,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 03:55:38,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 03:55:38,944 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 03:55:38,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 03:55:38,944 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 03:55:38,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 03:55:38,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 03:55:38,945 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 03:55:38,945 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 03:55:38,945 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 03:55:38,946 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 03:55:38,946 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 03:55:38,946 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 03:55:38,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 03:55:38,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-11-07 03:55:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 03:55:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 03:55:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 03:55:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 03:55:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 03:55:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 03:55:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 03:55:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 03:55:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 03:55:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 03:55:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 03:55:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 03:55:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 03:55:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 03:55:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 03:55:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 03:55:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 03:55:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 03:55:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 03:55:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 03:55:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 03:55:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 03:55:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 03:55:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 03:55:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 03:55:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 03:55:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 03:55:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 03:55:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 03:55:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 03:55:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 03:55:38,951 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 03:55:38,951 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 03:55:38,951 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 03:55:38,951 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 03:55:38,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-11-07 03:55:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 03:55:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 03:55:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 03:55:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-11-07 03:55:38,952 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 03:55:38,953 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 03:55:38,953 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 03:55:38,953 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 03:55:38,954 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 03:55:38,954 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 03:55:38,955 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 03:55:38,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 03:55:38,956 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 03:55:38,956 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 03:55:38,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 03:55:38,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 03:55:38,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 03:55:40,077 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 03:55:40,077 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 03:55:40,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:40 BoogieIcfgContainer [2020-11-07 03:55:40,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 03:55:40,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 03:55:40,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 03:55:40,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 03:55:40,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:55:38" (1/3) ... [2020-11-07 03:55:40,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96274f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:40, skipping insertion in model container [2020-11-07 03:55:40,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:38" (2/3) ... [2020-11-07 03:55:40,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96274f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:40, skipping insertion in model container [2020-11-07 03:55:40,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:40" (3/3) ... [2020-11-07 03:55:40,090 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-11-07 03:55:40,107 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 03:55:40,112 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 03:55:40,125 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 03:55:40,152 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 03:55:40,152 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 03:55:40,152 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 03:55:40,152 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 03:55:40,153 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 03:55:40,153 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 03:55:40,153 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 03:55:40,153 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 03:55:40,178 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-11-07 03:55:40,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-07 03:55:40,198 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:40,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:40,200 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:55:40,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:40,207 INFO L82 PathProgramCache]: Analyzing trace with hash 2013434145, now seen corresponding path program 1 times [2020-11-07 03:55:40,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:40,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067405362] [2020-11-07 03:55:40,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:41,048 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:41,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:41,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:41,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:41,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:41,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:41,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:55:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:41,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 03:55:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:41,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:41,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067405362] [2020-11-07 03:55:41,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:41,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 03:55:41,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930694654] [2020-11-07 03:55:41,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 03:55:41,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:41,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 03:55:41,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 03:55:41,320 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 3 states. [2020-11-07 03:55:43,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:43,135 INFO L93 Difference]: Finished difference Result 465 states and 552 transitions. [2020-11-07 03:55:43,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 03:55:43,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-07 03:55:43,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:43,157 INFO L225 Difference]: With dead ends: 465 [2020-11-07 03:55:43,158 INFO L226 Difference]: Without dead ends: 291 [2020-11-07 03:55:43,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 03:55:43,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-11-07 03:55:43,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 250. [2020-11-07 03:55:43,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-07 03:55:43,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 270 transitions. [2020-11-07 03:55:43,378 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 270 transitions. Word has length 148 [2020-11-07 03:55:43,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:43,381 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 270 transitions. [2020-11-07 03:55:43,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 03:55:43,381 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 270 transitions. [2020-11-07 03:55:43,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-07 03:55:43,399 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:43,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:43,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 03:55:43,400 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:55:43,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:43,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1678626346, now seen corresponding path program 1 times [2020-11-07 03:55:43,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:43,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371350500] [2020-11-07 03:55:43,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:43,999 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:44,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:44,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:44,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:44,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:44,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:44,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 03:55:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:44,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 03:55:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:44,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:44,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371350500] [2020-11-07 03:55:44,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:44,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 03:55:44,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66971877] [2020-11-07 03:55:44,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 03:55:44,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:44,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 03:55:44,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 03:55:44,159 INFO L87 Difference]: Start difference. First operand 250 states and 270 transitions. Second operand 4 states. [2020-11-07 03:55:45,023 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:46,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:46,142 INFO L93 Difference]: Finished difference Result 379 states and 423 transitions. [2020-11-07 03:55:46,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 03:55:46,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-11-07 03:55:46,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:46,148 INFO L225 Difference]: With dead ends: 379 [2020-11-07 03:55:46,148 INFO L226 Difference]: Without dead ends: 274 [2020-11-07 03:55:46,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 03:55:46,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-11-07 03:55:46,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 240. [2020-11-07 03:55:46,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-11-07 03:55:46,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 257 transitions. [2020-11-07 03:55:46,289 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 257 transitions. Word has length 149 [2020-11-07 03:55:46,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:46,289 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 257 transitions. [2020-11-07 03:55:46,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 03:55:46,290 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 257 transitions. [2020-11-07 03:55:46,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-11-07 03:55:46,292 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:46,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:46,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 03:55:46,293 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:55:46,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:46,294 INFO L82 PathProgramCache]: Analyzing trace with hash -193801291, now seen corresponding path program 1 times [2020-11-07 03:55:46,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:46,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735589919] [2020-11-07 03:55:46,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:46,742 WARN L194 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:46,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:46,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:46,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:46,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:46,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:46,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 03:55:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:46,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 03:55:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:46,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:46,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735589919] [2020-11-07 03:55:46,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:46,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 03:55:46,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454999362] [2020-11-07 03:55:46,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 03:55:46,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:46,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 03:55:46,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 03:55:46,931 INFO L87 Difference]: Start difference. First operand 240 states and 257 transitions. Second operand 9 states. [2020-11-07 03:55:47,592 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:48,110 WARN L194 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:48,506 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:48,932 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:49,327 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:49,727 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:51,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:51,348 INFO L93 Difference]: Finished difference Result 399 states and 448 transitions. [2020-11-07 03:55:51,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 03:55:51,349 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-11-07 03:55:51,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:51,354 INFO L225 Difference]: With dead ends: 399 [2020-11-07 03:55:51,354 INFO L226 Difference]: Without dead ends: 274 [2020-11-07 03:55:51,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-07 03:55:51,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-11-07 03:55:51,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 240. [2020-11-07 03:55:51,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-11-07 03:55:51,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 256 transitions. [2020-11-07 03:55:51,446 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 256 transitions. Word has length 158 [2020-11-07 03:55:51,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:51,447 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 256 transitions. [2020-11-07 03:55:51,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 03:55:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 256 transitions. [2020-11-07 03:55:51,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-11-07 03:55:51,449 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:51,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:51,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 03:55:51,450 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:55:51,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:51,451 INFO L82 PathProgramCache]: Analyzing trace with hash 2108216576, now seen corresponding path program 1 times [2020-11-07 03:55:51,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:51,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367574615] [2020-11-07 03:55:51,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:51,883 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:51,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:51,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:51,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:51,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:51,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:51,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 03:55:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:51,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:51,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-11-07 03:55:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:51,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-07 03:55:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:52,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:52,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367574615] [2020-11-07 03:55:52,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:52,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 03:55:52,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510186505] [2020-11-07 03:55:52,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 03:55:52,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:52,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 03:55:52,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-07 03:55:52,028 INFO L87 Difference]: Start difference. First operand 240 states and 256 transitions. Second operand 6 states. [2020-11-07 03:55:52,805 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:54,592 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:55,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:55,401 INFO L93 Difference]: Finished difference Result 523 states and 593 transitions. [2020-11-07 03:55:55,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 03:55:55,401 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-11-07 03:55:55,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:55,405 INFO L225 Difference]: With dead ends: 523 [2020-11-07 03:55:55,406 INFO L226 Difference]: Without dead ends: 398 [2020-11-07 03:55:55,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:55:55,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2020-11-07 03:55:55,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 337. [2020-11-07 03:55:55,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-11-07 03:55:55,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 363 transitions. [2020-11-07 03:55:55,566 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 363 transitions. Word has length 166 [2020-11-07 03:55:55,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:55,566 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 363 transitions. [2020-11-07 03:55:55,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 03:55:55,567 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 363 transitions. [2020-11-07 03:55:55,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-11-07 03:55:55,569 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:55,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:55,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 03:55:55,570 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:55:55,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:55,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1315403326, now seen corresponding path program 1 times [2020-11-07 03:55:55,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:55,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798181830] [2020-11-07 03:55:55,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:55,966 WARN L194 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:55,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:56,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:56,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:56,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:56,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:56,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 03:55:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:56,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:56,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:56,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:56,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-11-07 03:55:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:56,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-11-07 03:55:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:56,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798181830] [2020-11-07 03:55:56,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:56,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 03:55:56,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241515553] [2020-11-07 03:55:56,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 03:55:56,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:56,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 03:55:56,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 03:55:56,200 INFO L87 Difference]: Start difference. First operand 337 states and 363 transitions. Second operand 9 states. [2020-11-07 03:55:56,835 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:58,082 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:58,493 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:58,918 WARN L194 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:59,317 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:59,751 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 03:56:00,145 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:02,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:02,075 INFO L93 Difference]: Finished difference Result 825 states and 960 transitions. [2020-11-07 03:56:02,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 03:56:02,083 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-11-07 03:56:02,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:02,102 INFO L225 Difference]: With dead ends: 825 [2020-11-07 03:56:02,102 INFO L226 Difference]: Without dead ends: 603 [2020-11-07 03:56:02,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2020-11-07 03:56:02,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-11-07 03:56:02,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 525. [2020-11-07 03:56:02,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2020-11-07 03:56:02,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 578 transitions. [2020-11-07 03:56:02,321 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 578 transitions. Word has length 190 [2020-11-07 03:56:02,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:02,322 INFO L481 AbstractCegarLoop]: Abstraction has 525 states and 578 transitions. [2020-11-07 03:56:02,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 03:56:02,322 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 578 transitions. [2020-11-07 03:56:02,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-11-07 03:56:02,325 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:02,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:56:02,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 03:56:02,326 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:56:02,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:02,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1523752097, now seen corresponding path program 1 times [2020-11-07 03:56:02,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:02,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702937080] [2020-11-07 03:56:02,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:02,722 WARN L194 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:02,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:02,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:02,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:02,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:02,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:02,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 03:56:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:02,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:02,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:56:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:02,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:56:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:02,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-11-07 03:56:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:02,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-11-07 03:56:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:02,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:56:02,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702937080] [2020-11-07 03:56:02,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:56:02,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 03:56:02,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294280102] [2020-11-07 03:56:02,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 03:56:02,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:02,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 03:56:02,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 03:56:02,930 INFO L87 Difference]: Start difference. First operand 525 states and 578 transitions. Second operand 9 states. [2020-11-07 03:56:03,590 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:05,168 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:05,602 WARN L194 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:06,053 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:06,442 WARN L194 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:07,214 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:07,594 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:07,966 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:08,418 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:09,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:09,605 INFO L93 Difference]: Finished difference Result 1398 states and 1632 transitions. [2020-11-07 03:56:09,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 03:56:09,606 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-11-07 03:56:09,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:09,613 INFO L225 Difference]: With dead ends: 1398 [2020-11-07 03:56:09,613 INFO L226 Difference]: Without dead ends: 988 [2020-11-07 03:56:09,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-07 03:56:09,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2020-11-07 03:56:10,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 873. [2020-11-07 03:56:10,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2020-11-07 03:56:10,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 970 transitions. [2020-11-07 03:56:10,016 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 970 transitions. Word has length 190 [2020-11-07 03:56:10,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:10,017 INFO L481 AbstractCegarLoop]: Abstraction has 873 states and 970 transitions. [2020-11-07 03:56:10,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 03:56:10,017 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 970 transitions. [2020-11-07 03:56:10,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-11-07 03:56:10,021 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:10,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:56:10,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 03:56:10,022 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:56:10,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:10,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1609018971, now seen corresponding path program 1 times [2020-11-07 03:56:10,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:10,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578897253] [2020-11-07 03:56:10,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,425 WARN L194 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:10,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:56:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:56:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:56:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:56:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 03:56:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-11-07 03:56:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:10,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:56:10,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1578897253] [2020-11-07 03:56:10,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:56:10,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:56:10,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188950605] [2020-11-07 03:56:10,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:56:10,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:10,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:56:10,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:56:10,605 INFO L87 Difference]: Start difference. First operand 873 states and 970 transitions. Second operand 10 states. [2020-11-07 03:56:11,253 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:13,168 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:13,594 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:14,028 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:15,373 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:15,798 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:16,178 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:16,552 WARN L194 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:16,909 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:17,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:17,293 INFO L93 Difference]: Finished difference Result 1097 states and 1284 transitions. [2020-11-07 03:56:17,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 03:56:17,294 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-11-07 03:56:17,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:17,305 INFO L225 Difference]: With dead ends: 1097 [2020-11-07 03:56:17,305 INFO L226 Difference]: Without dead ends: 1093 [2020-11-07 03:56:17,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-11-07 03:56:17,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2020-11-07 03:56:17,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 873. [2020-11-07 03:56:17,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2020-11-07 03:56:17,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 968 transitions. [2020-11-07 03:56:17,622 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 968 transitions. Word has length 195 [2020-11-07 03:56:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:17,622 INFO L481 AbstractCegarLoop]: Abstraction has 873 states and 968 transitions. [2020-11-07 03:56:17,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:56:17,623 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 968 transitions. [2020-11-07 03:56:17,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-07 03:56:17,627 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:17,628 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:56:17,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 03:56:17,628 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:56:17,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:17,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1449475064, now seen corresponding path program 1 times [2020-11-07 03:56:17,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:17,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104446478] [2020-11-07 03:56:17,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,033 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:18,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:56:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:56:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:56:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:56:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 03:56:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-11-07 03:56:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-11-07 03:56:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:18,297 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-07 03:56:18,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104446478] [2020-11-07 03:56:18,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:56:18,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:56:18,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618903691] [2020-11-07 03:56:18,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:56:18,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:18,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:56:18,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:56:18,299 INFO L87 Difference]: Start difference. First operand 873 states and 968 transitions. Second operand 10 states. [2020-11-07 03:56:19,810 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:20,222 WARN L194 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:56:20,606 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 03:56:20,980 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:21,363 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:21,725 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:23,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:23,428 INFO L93 Difference]: Finished difference Result 1881 states and 2209 transitions. [2020-11-07 03:56:23,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 03:56:23,429 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 218 [2020-11-07 03:56:23,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:23,437 INFO L225 Difference]: With dead ends: 1881 [2020-11-07 03:56:23,437 INFO L226 Difference]: Without dead ends: 1123 [2020-11-07 03:56:23,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-11-07 03:56:23,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2020-11-07 03:56:23,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 905. [2020-11-07 03:56:23,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-11-07 03:56:23,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1000 transitions. [2020-11-07 03:56:23,823 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1000 transitions. Word has length 218 [2020-11-07 03:56:23,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:23,823 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1000 transitions. [2020-11-07 03:56:23,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:56:23,823 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1000 transitions. [2020-11-07 03:56:23,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-07 03:56:23,827 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:23,827 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:56:23,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 03:56:23,828 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:56:23,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:23,828 INFO L82 PathProgramCache]: Analyzing trace with hash -9675672, now seen corresponding path program 1 times [2020-11-07 03:56:23,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:23,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713863545] [2020-11-07 03:56:23,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,209 WARN L194 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:24,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:56:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:56:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:56:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:56:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 03:56:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-11-07 03:56:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-11-07 03:56:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:24,465 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-07 03:56:24,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713863545] [2020-11-07 03:56:24,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:56:24,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-07 03:56:24,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023943996] [2020-11-07 03:56:24,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 03:56:24,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:24,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 03:56:24,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-11-07 03:56:24,467 INFO L87 Difference]: Start difference. First operand 905 states and 1000 transitions. Second operand 13 states. [2020-11-07 03:56:25,237 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:25,618 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:56:25,994 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:26,415 WARN L194 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:26,814 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:27,800 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:28,178 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:28,564 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:28,995 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:29,365 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:31,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:31,082 INFO L93 Difference]: Finished difference Result 1651 states and 1902 transitions. [2020-11-07 03:56:31,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 03:56:31,083 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 218 [2020-11-07 03:56:31,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:31,088 INFO L225 Difference]: With dead ends: 1651 [2020-11-07 03:56:31,089 INFO L226 Difference]: Without dead ends: 861 [2020-11-07 03:56:31,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-11-07 03:56:31,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-11-07 03:56:31,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 717. [2020-11-07 03:56:31,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-11-07 03:56:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 774 transitions. [2020-11-07 03:56:31,412 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 774 transitions. Word has length 218 [2020-11-07 03:56:31,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:31,412 INFO L481 AbstractCegarLoop]: Abstraction has 717 states and 774 transitions. [2020-11-07 03:56:31,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 03:56:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 774 transitions. [2020-11-07 03:56:31,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-11-07 03:56:31,414 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:31,415 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:56:31,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 03:56:31,415 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:56:31,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:31,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1927375073, now seen corresponding path program 1 times [2020-11-07 03:56:31,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:31,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723629401] [2020-11-07 03:56:31,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:31,808 WARN L194 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:31,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:31,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:31,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:31,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:31,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:31,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-11-07 03:56:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:31,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-07 03:56:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:31,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-11-07 03:56:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:31,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:31,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:56:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:31,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:56:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:32,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:32,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 03:56:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:32,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-11-07 03:56:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:32,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-11-07 03:56:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-07 03:56:32,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723629401] [2020-11-07 03:56:32,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 03:56:32,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-11-07 03:56:32,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900685108] [2020-11-07 03:56:32,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-07 03:56:32,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:32,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-07 03:56:32,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-11-07 03:56:32,317 INFO L87 Difference]: Start difference. First operand 717 states and 774 transitions. Second operand 20 states. [2020-11-07 03:56:33,035 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:33,512 WARN L194 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:33,902 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 03:56:34,291 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:34,684 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:56:35,073 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:36,155 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:37,795 WARN L194 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:38,258 WARN L194 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:56:38,756 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:39,188 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:39,597 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:56:40,003 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:56:40,415 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:40,846 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:56:41,287 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:41,809 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:56:42,247 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:42,692 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:56:43,554 WARN L194 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-11-07 03:56:44,470 WARN L194 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 208 [2020-11-07 03:56:45,216 WARN L194 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-11-07 03:56:47,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:47,142 INFO L93 Difference]: Finished difference Result 1428 states and 1602 transitions. [2020-11-07 03:56:47,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-11-07 03:56:47,143 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 223 [2020-11-07 03:56:47,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:47,149 INFO L225 Difference]: With dead ends: 1428 [2020-11-07 03:56:47,149 INFO L226 Difference]: Without dead ends: 826 [2020-11-07 03:56:47,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=497, Invalid=2155, Unknown=0, NotChecked=0, Total=2652 [2020-11-07 03:56:47,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-11-07 03:56:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 682. [2020-11-07 03:56:47,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2020-11-07 03:56:47,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 729 transitions. [2020-11-07 03:56:47,534 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 729 transitions. Word has length 223 [2020-11-07 03:56:47,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:47,535 INFO L481 AbstractCegarLoop]: Abstraction has 682 states and 729 transitions. [2020-11-07 03:56:47,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-07 03:56:47,535 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 729 transitions. [2020-11-07 03:56:47,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-11-07 03:56:47,538 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:47,539 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:56:47,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 03:56:47,539 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:56:47,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:47,540 INFO L82 PathProgramCache]: Analyzing trace with hash 34117803, now seen corresponding path program 1 times [2020-11-07 03:56:47,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:47,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477216363] [2020-11-07 03:56:47,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:47,977 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:47,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-11-07 03:56:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 03:56:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:56:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:56:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 03:56:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 03:56:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-07 03:56:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-11-07 03:56:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-11-07 03:56:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-11-07 03:56:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-11-07 03:56:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-11-07 03:56:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:48,251 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-11-07 03:56:48,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477216363] [2020-11-07 03:56:48,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 03:56:48,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-07 03:56:48,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682652823] [2020-11-07 03:56:48,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 03:56:48,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:48,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 03:56:48,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-07 03:56:48,254 INFO L87 Difference]: Start difference. First operand 682 states and 729 transitions. Second operand 9 states. [2020-11-07 03:56:49,548 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:51,654 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:52,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:52,535 INFO L93 Difference]: Finished difference Result 1572 states and 1829 transitions. [2020-11-07 03:56:52,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 03:56:52,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 269 [2020-11-07 03:56:52,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:52,544 INFO L225 Difference]: With dead ends: 1572 [2020-11-07 03:56:52,544 INFO L226 Difference]: Without dead ends: 1169 [2020-11-07 03:56:52,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-11-07 03:56:52,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-11-07 03:56:53,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 932. [2020-11-07 03:56:53,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2020-11-07 03:56:53,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1021 transitions. [2020-11-07 03:56:53,066 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1021 transitions. Word has length 269 [2020-11-07 03:56:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:53,067 INFO L481 AbstractCegarLoop]: Abstraction has 932 states and 1021 transitions. [2020-11-07 03:56:53,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 03:56:53,067 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1021 transitions. [2020-11-07 03:56:53,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-11-07 03:56:53,070 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:53,071 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:56:53,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 03:56:53,071 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:56:53,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:53,072 INFO L82 PathProgramCache]: Analyzing trace with hash 735763275, now seen corresponding path program 1 times [2020-11-07 03:56:53,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:53,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625650838] [2020-11-07 03:56:53,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 03:56:53,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 03:56:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 03:56:53,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 03:56:53,588 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 03:56:53,588 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 03:56:53,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 03:56:53,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:56:53 BoogieIcfgContainer [2020-11-07 03:56:53,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 03:56:53,970 INFO L168 Benchmark]: Toolchain (without parser) took 75958.51 ms. Allocated memory was 157.3 MB in the beginning and 815.8 MB in the end (delta: 658.5 MB). Free memory was 138.9 MB in the beginning and 489.8 MB in the end (delta: -350.9 MB). Peak memory consumption was 307.3 MB. Max. memory is 8.0 GB. [2020-11-07 03:56:53,971 INFO L168 Benchmark]: CDTParser took 1.03 ms. Allocated memory is still 157.3 MB. Free memory is still 130.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 03:56:53,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.50 ms. Allocated memory is still 157.3 MB. Free memory was 138.2 MB in the beginning and 133.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-11-07 03:56:53,976 INFO L168 Benchmark]: Boogie Preprocessor took 129.32 ms. Allocated memory is still 157.3 MB. Free memory was 133.7 MB in the beginning and 129.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-07 03:56:53,980 INFO L168 Benchmark]: RCFGBuilder took 1270.49 ms. Allocated memory is still 157.3 MB. Free memory was 129.8 MB in the beginning and 78.0 MB in the end (delta: 51.8 MB). Peak memory consumption was 53.4 MB. Max. memory is 8.0 GB. [2020-11-07 03:56:53,980 INFO L168 Benchmark]: TraceAbstraction took 73881.30 ms. Allocated memory was 157.3 MB in the beginning and 815.8 MB in the end (delta: 658.5 MB). Free memory was 78.0 MB in the beginning and 489.8 MB in the end (delta: -411.9 MB). Peak memory consumption was 246.1 MB. Max. memory is 8.0 GB. [2020-11-07 03:56:53,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03 ms. Allocated memory is still 157.3 MB. Free memory is still 130.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 661.50 ms. Allocated memory is still 157.3 MB. Free memory was 138.2 MB in the beginning and 133.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 129.32 ms. Allocated memory is still 157.3 MB. Free memory was 133.7 MB in the beginning and 129.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1270.49 ms. Allocated memory is still 157.3 MB. Free memory was 129.8 MB in the beginning and 78.0 MB in the end (delta: 51.8 MB). Peak memory consumption was 53.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 73881.30 ms. Allocated memory was 157.3 MB in the beginning and 815.8 MB in the end (delta: 658.5 MB). Free memory was 78.0 MB in the beginning and 489.8 MB in the end (delta: -411.9 MB). Peak memory consumption was 246.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=145, pumpRunning=131, systemActive=130, waterLevel=138] [L482] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=145, pumpRunning=131, systemActive=130, waterLevel=1] [L483] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=131, systemActive=130, waterLevel=1] [L580] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=130, waterLevel=1] [L581] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L751] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L828] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L833] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L834] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L876] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L879] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L880] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L834] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L834] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L836] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L838] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L839] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L818] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L413] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L414] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L416] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L420] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L422] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L424] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L430] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L432] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L434] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L500] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L501] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L434] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L442] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L452] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L465] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L588] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L732] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L733] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L734] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L562] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L565] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L570] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L738] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L740] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L743] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L745] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L746] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L622] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L624] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L626] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L651] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L521] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L524] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L525] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] retValue_acc = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L655] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] tmp = isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L657] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L661] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L645] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L661] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L626] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L597] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L603] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L895] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L896] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L900] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L521] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L524] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L525] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L900] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L900] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L902] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L603] RET __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L465] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L422] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L424] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L430] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L432] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L442] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L444] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L512] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L515] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L444] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L452] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L465] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L588] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L590] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L488] COND TRUE waterLevel > 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L489] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L590] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L595] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L597] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L620] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L635] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L597] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L603] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L895] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L896] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L521] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L524] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L525] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L900] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L902] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L904] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L687] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L690] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L691] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L904] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L904] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L906] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L908] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L889] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec1_product41.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 628 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 73.4s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 61.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2755 SDtfs, 4890 SDslu, 6453 SDs, 0 SdLazy, 12175 SolverSat, 1334 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 499 GetRequests, 312 SyntacticMatches, 6 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 33.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=932occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 1326 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 2394 NumberOfCodeBlocks, 2394 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2113 ConstructedInterpolants, 0 QuantifiedInterpolants, 1040879 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 54/60 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...